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Product Description
The Mitsubishi MR-J3-700A4-RJ070 is a powerful 7 kW, 400V AC servo amplifier from the MELSERVO MR-J3 series, engineered for high-efficiency, three-phase applications. It features overcurrent, overvoltage, and overtemperature protection, current control for precise motor management, and operates between 0 to +55 C (storage: -20 to +85 C) with forced air cooling. Supporting SSCNET III/H communication and designed for panel mounting, it ensures reliable performance in advanced motion control systems.
Is Your Device Showing These Signs?
The Mitsubishi MR-J3-700A4-RJ070 servo amplifier commonly requires repair due to overcurrent faults stemming from shorted IGBTs or damaged IPM modules. Issues also arise from encoder feedback errors, often caused by resolver malfunction or wiring harness degradation. Power supply failures, specifically capacitor degradation and rectifier diode breakdown, are frequent. Communication errors, resulting from faulty RJ45 connectors or corrupted firmware, demand attention. Overheating, due to inadequate cooling or fan failure, leads to thermal shutdown and component stress.
Technical specifications
The Mitsubishi MR-J3-700A4-RJ070 is a 7kW, 400V AC servo amplifier with protective features, current control, and forced air cooling, operating from 0 to +55 C. It supports SSCNET III/H communication and is designed for panel mounting in motion control systems.
Our Repair Process for the
MR-J3-700A4-RJ070
Our repair process for the Mitsubishi MR-J3-700A4-RJ070 servo amplifier begins with a comprehensive evaluation to pinpoint the fault's origin, whether it be overcurrent issues traced to shorted IGBTs or damaged IPM modules, encoder feedback errors from resolver malfunction or wiring harness degradation, power supply failures involving capacitor degradation and rectifier diode breakdown, communication errors due to faulty RJ45 connectors or corrupted firmware, or overheating problems stemming from inadequate cooling or fan failure. Upon identifying the root cause, we proceed with component-level repairs, replacing defective parts with genuine Mitsubishi components. Rigorous testing under simulated operating conditions follows to ensure the amplifier meets factory specifications and reliable performance is restored.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY